You can skip the dose
You can test again at 11am (after 2 hours without food) and if she's high enough and you have a flexible schedule for shooting tonight, go ahead and shoot the scheduled dose (but you'd need to be able to test today and have supplies if you need them)
You can give a reduced dose of something like .5 ....but even if you reduce the dose, you'll still need to be able to change your shooting schedule (every 12 hours) and be able to test today
Unfortunately, like Marje, I can't be here all day to watch for you, so the safest thing may be to skip....especially if you are low on strips or can't be there today to monitor